<template>
    <div style="border: 1px solid #ccc">
      <Toolbar
        style="border-bottom: 1px solid #ccc; width: 100%;"
        :editor="editorRef"
        :defaultConfig="toolbarConfig"
        :mode="mode"
      />
      <Editor
        style="height: 300px; overflow-y: hidden;"
        v-model="valueHtml"
        :defaultConfig="editorConfig"
        :mode="mode"
        @onCreated="handleCreated"
        @onChange="handleChange"
      />
    </div>
</template>
<script>
import '@wangeditor/editor/dist/css/style.css' // 引入 css

import { onBeforeUnmount, ref, shallowRef, onMounted, watch } from 'vue'
import { Editor, Toolbar } from '@wangeditor/editor-for-vue'
// const emit = defineEmits(["udpate:value"])
export default {
  components: { Editor, Toolbar },
  props: {
    val: {
      type: String,
      default: ''
    }
  },
  emits: ["udpate:val"],
  setup(props, { emit }) {
    // 编辑器实例，必须用 shallowRef
    const editorRef = shallowRef()

    // 内容 HTML
    const valueHtml = ref('')

    const toolbarConfig = {}
    const editorConfig = { placeholder: '请输入内容...' }

    // 组件销毁时，也及时销毁编辑器
    onBeforeUnmount(() => {
        const editor = editorRef.value
        if (editor == null) return
        editor.destroy()
    })
    /** 输入内容回调 */
    const handleChange = (editor) => {
      const innerHTML = editor.getHtml()
      emit("update:val", innerHTML)
    }
    /** 创建实例回调 */
    const handleCreated = (editor) => {
      editorRef.value = editor // 记录 editor 实例，重要！
    }

    onMounted(() => {
      setTimeout(() => {
        // valueHtml.value = 'sdfsdfdssdfdsf'
        console.log(2222)
      }, 200)
      
    })

    watch(() => props.val, (val) => {
      valueHtml.value = val
    }, {
      immediate: true // 初始化处理一次
    })

    return {
      editorRef,
      valueHtml,
      mode: 'default', // 或 'simple'
      toolbarConfig,
      editorConfig,
      handleCreated,
      handleChange
    };
  }
}
</script>   